— 151 — 



concave not plicate. Capsule oblong-cylindrie; lid conic; teeth 



red. — Ponds r. Amer. Can. Vane, isl.: Macoun Canad. musci 



n. 233. »U. S.» Cardot. Eur. »France, Italy, Austria»: Cardot, 



64. Dichelyma Myrin. 



A. Leaves ug. nearly straight, upper obtuse or subobtuse 

 costa not excurrent. Endostome not or only at apex cancellate 

 l.D.pallescens Br. eur. — Neckera leucoclada C. M. syn. 



Upper leaves denticulate below, serrate above. Capsule oval 

 oblong; pedicel short-exserted. Tufts olive-green. — On wet 

 logs or on base of trees r. Amer. Can.: Macoun; Moser; Fowler 



B. Leaves subulate falcate; costa excurrent or r. (in D. cy- 

 lindricarpum) percurrent. 



a. Pedicel of capsule not exserted above perichetial leaves. 

 Endostome not or only at apex cancellate. 



2. D.capillaceum Dickson. — Fontinalis Dicks.; Dichelyma Schimp. 

 Upper leaves entire; costa long-excurrent. Capsule oval-oblong, 

 Tufts green or blackish. Leaves smaller than in D. falcatum. 

 — Trees and logs by ponds or in rivulets r. Eur. Sweden: 

 C. Hartman; Lindberg; Berggren. Amer, Can.: Macoun; Moser; 

 Drummond n. 234. 



b. Pedicel long-exserted. Endostome completely cancellate. 

 S.D.falcatum Hedwig. — Fontinalis H.; Dichelyma Myrin. 



Leaves somewhat large, upper entire below and serrate above; 

 costa short-excurrent. Capsule oblong-cylindrie. Habit of Syp- 

 num fluitans. — Swamps, lakes and brooks in northern districts. 

 Eur. Sweden and Norway not r.l Germany very r.: Schiffner. 

 Amer. r. Can.: Labrador: Waghorne. 

 4.D.uiicinatum Mitten. 



Leaves smaller than in the last; upper denticulate below, 

 serrate above; costa long-excurrent. Capsule oval; pedicel shorter 

 than in the last. Habit of D. capillaceum. — Logs and trees 

 in ponds and brooks r. Amer. Can.: Macoun. U. S.: Howell 

 and Henderson, com. Cardot. 

 S.D.cjiindricarpum Austin. 



Leaves small as in the last; upper entire at least below, 

 sometimes faintly denticulate (not serrate) above; costa long- 

 excurrent or percurrent. Capsule cylindric; pedicel long-exserted. 

 Habit of the last. — Inundated rocks r. Amer. Can. Cascade 

 mountains: Macoun; determ. Austin. 



65. Brachelyma Schimper. 

 l.B.snbnlatum Beauvois. — Fontinalis Beauv.; Brachelyma 

 Sohimp.; Neckera C. M. syn. 



